Too bad you can't get a wysips sample and place it there layered in with the E-ink to both power the E-ink display plus charge the battery.

Maybe you can email the company and ask for a sample for this project. The wysips is transparent and layers with a touch screen. If you made an E-ink display other half that charges the phone and you got it on the market in the next 6 months in volume you would absolutely kill it, you would sell so many.

Just picture your phone is charging everytime you lay it face down on a table and the E-ink display has time, weather and notifications and you run a little inlay of glowpaint running in a line going around where the other half joins the front (or maybe a little higher up if that proves unable to absorb enough light) it would look like a mini steam box, that would be sick. Glowpaint sells the granules so that you can embed it into plastic.
And you could have a small pocket in it to insert a 128gb sd card and a usb 3.0 connection on it and you walk around with steam OS on it with all your steam games on it and you run steam OS live USB when you hook it to a computer.
Also the wysips on the e-ink would have LiFi and you could open garden app that shizzle to mesh network it with your other devices.

And then you could make a moga game pad type other half with the other half split in 2 with hinges and you flip it over and it locks with your left and right game controls with phone still in the center of gravity so you don't drop it and it also has the sd card pocket so that the sd card that you slipped out of your e-ink other half and that you have conveniently partitioned to be half steam OS and half android games so that you can have all the free to play moga enhanced games on it pop up because of nfc and also battery on this other half.